The grapefruit diet has been around a long time -- since at least the 1930s. A short-term, quick weight loss plan also known as the Hollywood Diet or the Mayo Diet (not associated with the Mayo Clinic), the grapefruit diet surprisingly has survived the test of time, being circulated by word of mouth, online and in book form -- yet no one claims ownership of the plan. Most versions promise a 10-pound weight loss during the 12-day diet.
The premise of the grapefruit diet is based on an alleged "magical" ingredient in grapefruits, that, when eaten with protein, theoretically triggers fat burning and causes weight loss. The diet is designed to promote fast weight loss; unfortunately, the weight lost is primarily from fluids and not fat and generally returns as soon as the dieter goes off the diet.
Exercise is recommended in some versions and absent in others. Long-term weight control is not part of the diet plan.
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